The Collaborative International Dictionary of English v.0.48:

Sciaenoid \Sci*ae"noid\, a. [L. sciaena a kind of fish (fr. Gr.
   ?) + -oid.] (Zool.)
   Of or pertaining to the Sciaenidae, a family of carnivorous
   marine fishes which includes the meagre (Sciaena umbra or
   Sciaena aquila), and fish of the drum and croaker
   families. The croaker is so called because it may make a
   croaking noise by use of its bladder; the Atlantic croaker
   (Micropogonias undulatus, formerly Micropogon undulatus)
   and the squeteague are a members of the croaker family, and
   the kingfish is a drum.
   [1913 Webster +PJC]

The Collaborative International Dictionary of English v.0.48:

Meagre \Mea"gre\, n. [F. maigre.] (Zool.)
   A large European sciaenoid fish (Sciaena umbra or Sciaena
   aquila), having white bloodless flesh. It is valued as a
   food fish. [Written also maigre.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

Sciaena aquila
    n 1: large European marine food fish [syn: maigre, maiger,
         Sciaena aquila]